Definition: You are given a question on college chemistry. You are also given 4 answer options (associated with "A", "B", "C", "D"), out of which only one is correct. You need to answer the question by selecting the correct option. You should only answer with the choice letter, not the whole answer.
Input: Estimate the β-hyperfine value for the cyclobutyl radical (C4H7•) assuming the radical is flat and the HCH angle is 115°.
(A)4.6 mT (B)27 G (C)5.4 mT (D)3.8 mT

A